cpython: b0b17b41edfc (original) (raw)

Mercurial > cpython

changeset 105806:b0b17b41edfc 3.5

Issue #1446619: Account for negative slice direction in description Based on suggestion from Fumihiro Bessho. [#1446619]

Martin Panter vadmium+py@gmail.com
date	Sat, 24 Dec 2016 08:25:15 +0000
parents	a33472f8a2c6
children	031af2160094 3f94e3c7dcc5
files	Doc/library/stdtypes.rst
diffstat	1 files changed, 4 insertions(+), 2 deletions(-)[+] [-] Doc/library/stdtypes.rst 6

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--- a/Doc/library/stdtypes.rst +++ b/Doc/library/stdtypes.rst @@ -942,8 +942,10 @@ Notes: The slice of s from i to j with step k is defined as the sequence of items with index x = i + n*k such that 0 <= n < (j-i)/k. In other words, the indices are i, i+k, i+2*k, i+3*k and so on, stopping when

j is reached (but never including j). If i or j is greater than
len(s), use len(s). If i or j are omitted or None, they become

j is reached (but never including j). When k is positive,
i and j are reduced to len(s) if they are greater.
When k is negative, i and j are reduced to len(s) - 1 if
they are greater. If i or j are omitted or None, they become "end" values (which end depends on the sign of k). Note, k cannot be zero. If k is None, it is treated like 1.